Whether you’re settling into a new home or you’ve been in the same place for years, your locks are your first line of defense. But how do you know when it’s time for an upgrade? As a professional locksmith with years of hands-on experience, I’ve seen firsthand how worn-out, outdated, or compromised locks put homes and families at risk.
If you’re wondering whether it’s time for a lock replacement, here are 10 undeniable signs you shouldn’t ignore.
1. You’ve Just Moved In
Even if the keys seem brand new, you can never be sure who else has a copy—previous owners, estate agents, builders, or neighbours. Changing your locks ensures only you and your trusted family members have access.
Pro Tip: Always change your locks within the first week of moving in.
2. Lost or Stolen Keys
If you’ve lost your keys or suspect they’ve been stolen, your home’s security is instantly compromised. A thief doesn’t need a crowbar if they have a working key.
Don’t just get a new key cut—replace the entire lock to stay safe.
3. Break-In or Attempted Break-In
Burglars often damage locks during forced entry. Even if they didn’t succeed, your current locks could now be vulnerable or weakened.
After a break-in, always get your locks inspected and upgraded by a qualified locksmith.
4. Your Locks Are Rusty or Difficult to Turn
Stiff, rusty, or corroded locks aren’t just annoying—they’re an early warning sign. Moisture, dirt, or internal damage can cause failure when you least expect it.
If you’re struggling with your key daily, it’s time for a replacement.
5. You’re Using the Same Key for Years
Older locks are easier for burglars to pick or bump. If your lock is 10+ years old, it’s likely not up to today’s security standards.
Upgrade to British Standard or anti-snap locks for peace of mind.
6. The Lock Doesn’t Match the Door Type
For example, using a basic cylinder lock on a UPVC door or a weak night latch on a timber door is risky. The wrong lock reduces security and can even void insurance claims.
I often see mismatched locks during callouts—this is a common but fixable mistake.
7. You’ve Had a Relationship Change
Whether it’s a breakup, divorce, or falling out with a roommate, it’s best to change the locks—just in case. Emotional situations shouldn’t lead to safety risks.
Protect your peace of mind with a quick and discreet lock change.
8. Your Key Turns, but Nothing Happens
If you’re turning your key but the latch doesn’t engage or the door stays locked, the internal mechanism is likely faulty. Don’t wait until you’re locked out—or worse, locked in.
This is a clear sign of internal lock failure and calls for immediate replacement.
9. You Want to Upgrade Your Home’s Security
Smart locks, anti-drill cylinders, and high-security deadbolts can dramatically improve your safety. If your locks don’t offer this, you’re missing out.
Ask about keyless entry and digital locks for modern, secure living.
10. Your Lock Looks Visibly Damaged or Loose
A loose handle, wobbly cylinder, or cracked casing are all signs that the lock isn’t secure. Don’t rely on a damaged lock to protect your valuables.
Regular maintenance can extend a lock’s life, but sometimes a replacement is simply smarter.
Don’t Wait Until It’s Too Late
If any of these signs sound familiar, it’s time to take action. I offer fast, affordable, and professional lock replacement services, with no call-out fee and a satisfaction guarantee.
Local & Trusted
I cover Portrush and surrounding towns, with same-day service in most cases. Whether it’s for your home, rental property, or business, I’ve got you covered.
Call Prolock Locksmiths Today – Your Local Lock Expert
Call: 07976905574
Map: https://maps.app.goo.gl/7fHYbgW2K97E1kVTA
Portrush, Northern Ireland
24/7 Emergency Services Available
Peace of mind starts with the turn of a key—make sure it’s the right one.